CVE-2026-82814 Duplicator WordPress Plugin - Insecure Deserialization

Duplicator and Duplicator Pro WordPress plugins <= 1.5.17 and 4.6.10 contain a PHP Object Injection caused by deserialization of untrusted database content in DUPX_UpdateEngine::unserializeTest(), letting unauthenticated attackers execute OS commands or delete files during migration, exploit requires administrator to perform migration after attacker stores serialized object.

CVSS base score 8.8 /10
High
CISA KEV
Not listed
Public exploit
None known
Authentication
Not required
View the NVD record ↗

Details

Type
Insecure Deserialization
Impact
Remote Code Execution, File System Write, Denial Of Service
CVSS vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
Published
21 October 2026
Updated
21 October 2026
Weakness
CWE-502

Vendor fix

Update to versions later than 1.5.17 for Duplicator and 4.6.10 for Duplicator Pro or latest available versions.

Patching closes this CVE. It does not tell you which of your systems run the affected version, or what else is exposed alongside them.

References

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